Valve part . Investment casting. . Material: carbon steel, alloy steel, stainless steel,. cast iron, ductile iron. . Process: investment by loosing wax. . Packing: wooden cases or as the customer's request . Buyer label offered. . Design service offered. . ISO 9001:2000 quality management certification. . We can also complete processing according to drawing and samples provided by our customers... . If you find any of our products interesting, please feel free to contact us. And then we will give you our best. price!.